Microsoft didn’t go the normal MSI-way with Office 2010, and included a customization wizard, as they did with previous versions. However, creating a silent install with integrated MUI-packs wasn’t as self explaining as I thought. In this post, I want to document the steps I’ve made, to create a silent install.

Integrating the MUI Packs:
This is quite easy, you can just copy the MUI Packs contents into the setup sources, while keeping the files that already exist.

Customizing installation:
Setup.exe /admin starts the Customization Wizard, it will create a .msp patch, which includes the settings you’ve made. Be sure to choose the silent install.
If you didn’t add any MUI Packs, you can run

Setup.exe /adminfile yourmsp.msp

, and it will install silently. If you’ve added additional languages, this will not work, because Setup will prompt you what to install (MUI-Pack or Office). If you choose office, it will also only install one language.
To solve this issue, you’ll need a config.xml file, which includes the product you want to install, display level and the additional languages: